twoheadedboy writes: "Yahoo is being sued by one of its users, who has claimed the US Internet company was guilty of negligence when 450,000 passwords of the members of the Yahoo Voices blogging community were posted online. Jeff Allan from New Hampshire has turned to a federal court in San Jose, California, after his eBay account, which used the same password as his Voices account, was compromised. The breach at Yahoo followed similar hits on LinkedIn and Nvidia, which together saw millions of passwords leaked."